EP 1944391 A1 20080716 - CVD coated cemented carbide insert for toughness demanding short hole drilling operations
Title (en)
CVD coated cemented carbide insert for toughness demanding short hole drilling operations
Title (de)
CVD-beschichtete Hartmetalleinlage für belastbarkeitserfordernde Kleinlochbohrungen
Title (fr)
Insert de carbure cémenté revêtu par CVD pour des opérations de forage de trous de faible profondeur nécessitant de la résistance
Publication
Application
Priority
SE 0602812 A 20061227
Abstract (en)
The present invention relates to a coated cutting insert with excellent toughness properties particularly useful for toughness demanding short hole drilling in general steel materials and a method of making the same. The inserts comprise a substrate and a coating. The substrate consists of WC, 8-11 wt-% Co and 0.2-0.5 wt-% Cr with an average WC-grain size of 0.5-1.5 µm and a CW-ratio of 0.80-0.90. The coating comprises - a first (innermost) layer of TiC x N y O z with a thickness <1.5 µm, - a layer of TiC x N y O z with a thickness of 1-8 µm with columnar grains, - a layer of fine-grained grain º-Al 2 O 3 with a thickness of 0.5-5 µm and - a further layer <1 µm thick of TiC x N y O z whereby at the rake face the outermost TiC x N y O z -layer and Al 2 O 3 -layer are fully or partly missing.
IPC 8 full level
C23C 30/00 (2006.01); B23B 27/14 (2006.01); C22C 29/08 (2006.01)
CPC (source: EP KR SE US)
B23B 27/141 (2013.01 - EP US); B23B 27/148 (2013.01 - SE); C23C 16/30 (2013.01 - KR SE); C23C 16/403 (2013.01 - SE); C23C 28/00 (2013.01 - KR); C23C 30/005 (2013.01 - EP SE US); B22F 2005/001 (2013.01 - EP US); B22F 2998/00 (2013.01 - EP US); B23B 2222/28 (2013.01 - EP US); B23B 2224/04 (2013.01 - EP US); B23B 2224/32 (2013.01 - EP US); B23B 2228/105 (2013.01 - EP US); Y10T 428/24793 (2015.01 - EP US)
C-Set (source: EP US)
Citation (applicant)
- WO 2006080888 A1 20060803 - SANDVIK INTELLECTUAL PROPERTY [SE], et al
- WO 2006080889 A1 20060803 - SANDVIK INTELLECTUAL PROPERTY [SE], et al
- EP 1655390 A1 20060510 - SANDVIK INTELLECTUAL PROPERTY [SE]
- EP 0523021 A1 19930113 - SANDVIK AB [SE]
- US 5861210 A 19990119 - LENANDER ANDERS [SE], et al
- I.C. NOYAN; J.B. COHEN: "Residual Stress Measurement by Diffraction and Interpretation", 1987, SPRINGER-VERLAG, pages: 117 - 130
Citation (search report)
- [YD] WO 2006080888 A1 20060803 - SANDVIK INTELLECTUAL PROPERTY [SE], et al
- [Y] WO 0116389 A1 20010308 - SANDVIK AB [SE]
- [Y] EP 1038989 A2 20000927 - SANDVIK AB [SE]
- [Y] EP 1205569 A2 20020515 - SANDVIK AB [SE]
- [YD] EP 1655390 A1 20060510 - SANDVIK INTELLECTUAL PROPERTY [SE]
- [A] EP 1563933 A1 20050817 - SANDVIK INTELLECTUAL PROPERTY [SE]
- [XP] EP 1803835 A1 20070704 - SANDVIK INTELLECTUAL PROPERTY [SE]
- [A] EP 0683244 A2 19951122 - SUMITOMO ELECTRIC INDUSTRIES [JP]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1944391 A1 20080716; CN 101219591 A 20080716; JP 2008207317 A 20080911; KR 20080061313 A 20080702; SE 0602812 L 20080628; US 2008166527 A1 20080710
DOCDB simple family (application)
EP 07121947 A 20071130; CN 200710160600 A 20071227; JP 2007334861 A 20071226; KR 20070137978 A 20071226; SE 0602812 A 20061227; US 319807 A 20071220